nilfs2: Fix Underflow in Second Superblock Position Calculations

Kernel Updated 02 Oct 2025

Summary

07/03/2023

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2023-1002417: nilfs2: fix underflow in second superblock position calculations. Affects Kernel versions < 2f7a1135b202977b82457adde7db6c390056863b. No fix is published. How to fix ↓

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Background

The nilfs2 package is a file system implemented in the Linux Kernel. It is designed to provide continuous snapshotting capabilities for efficient backup and recovery. The package is widely used in Linux distributions and is an integral part of the Linux Kernel.

Vulnerability Detail

The vulnerability in nilfs2 arises from an underflow in the calculations for the position of the second superblock. This underflow can lead to incorrect positioning of the superblock, potentially causing data corruption or system crashes. An attacker may be able to exploit this vulnerability to gain unauthorized access or disrupt the system's normal operation.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no known workaround for this vulnerability. It is essential to apply the fix by updating the Linux Kernel to the recommended version.

Conclusion

The nilfs2 package in the Linux Kernel is vulnerable to an underflow issue in the calculations for the second superblock position. This vulnerability can lead to data corruption or system crashes. It is crucial to update the Linux Kernel to version v4.14.306 or later to mitigate this vulnerability. For further support on vulnerability remediation, contact DevNack.com.

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